Mandatory accessory for ducted extraction configurations. Includes: - 4 high-performance, low-noise acoustic filters for significantly lower noise and strongly improved psycho-acoustics. - A sealing gasquet that can be attached onto a male flat duct before inserting the element into the appliance to ensure air tightness (The air outlet on the backside of the appliance can directly be accessed with a male flat duct element (DN 150)
